M 4.0 Earthquake 94 km SSE of Sand Point, Alaska

Source: USGS · Alaska

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A magnitude 4.0 mb earthquake occurred 94 km SSE of Sand Point, Alaska at a depth of 40.6 km.

What this USGS earthquake report tells you, and what most readers miss

This notice was issued by USGS on June 7, 2026 and geographically references Alaska. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Earthquakes — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, Alaska) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

What Happened

A magnitude 4.0 mb earthquake struck 94 km SSE of Sand Point, Alaska on 2026-05-29 at 12:36:57 UTC. The event was recorded at coordinates 54.5329°N, 160.0106°W with a depth of 40.595 km.

Location Details

The earthquake was located 94 km south-southeast of Sand Point, Alaska at latitude 54.5329 and longitude -160.0106. The depth of 40.6 km places it in the intermediate range (20-70 km).

Impact Assessment

No felt reports were recorded. The maximum Modified Mercalli Intensity was estimated at 2.562. No tsunami was generated (tsunami advisory status: 0) and no alert level was issued.

What You Should Know

Earthquakes of this magnitude are classified as light and are typically felt but rarely cause damage. Residents in the region should be aware of the possibility of aftershocks.

Source

Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/us7000spb0

Original source: USGS Official Notice ↗

All Earthquakes →

Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
A magnitude 4.0 mb earthquake occurred 94 km SSE of Sand Point, Alaska at a depth of 40.6 km.
Which agency issued this alert?
This alert was issued by USGS. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects Alaska. Check with USGS for the most current geographic scope.
Where can I find more Earthquakes updates?
Browse the full Earthquakes feed on Areazine at areazine.com/earthquakes/ for the latest updates from USGS and other agencies.